Articles | Volume 19, issue 16
Atmos. Chem. Phys., 19, 11031–11041, 2019
https://doi.org/10.5194/acp-19-11031-2019
Atmos. Chem. Phys., 19, 11031–11041, 2019
https://doi.org/10.5194/acp-19-11031-2019

Research article 29 Aug 2019

Research article | 29 Aug 2019

Fine particulate matter (PM2.5) trends in China, 2013–2018: separating contributions from anthropogenic emissions and meteorology

Shixian Zhai et al.

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Latest update: 23 Sep 2021
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Short summary
Observed annual mean PM2.5 decreased by 30–50 % in China from 2013–2018. However, meteorologically PM2.5 variability complicates trend attribution. We used a stepwise multiple linear regression model to quantitatively separate contributions from anthropogenic emissions and meteorology. Results show that 88 % of the PM2.5 decrease across China is attributable to anthropogenic emission changes, and 12 % is attributable to meteorology.
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